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SubjectRe: [RFC PATCH 3/5] numa: introduce per-cgroup preferred numa node
On Mon, Apr 22, 2019 at 10:13:36AM +0800, 王贇 wrote:
> diff --git a/mm/mempolicy.c b/mm/mempolicy.c
> index af171ccb56a2..6513504373b4 100644
> --- a/mm/mempolicy.c
> +++ b/mm/mempolicy.c
> @@ -2031,6 +2031,10 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
>
> pol = get_vma_policy(vma, addr);
>
> + page = alloc_page_numa_preferred(gfp, order);
> + if (page)
> + goto out;
> +
> if (pol->mode == MPOL_INTERLEAVE) {
> unsigned nid;
>

This I think is wrong, it overrides app specific mbind() requests.

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